When two boats share the same hull type — in this case both the Duckworth Magnum Inboard 21 ft. 2007 and the Duckworth Ultra Magnum Inboard 22 ft. 2008 are deep vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.